Worst customer service experience EVER

Back when I moved in with my dad to help him he didn't have or want internet so I call and asked about getting internet they were helpful at this point but all sales reps are. They helped me qualify for under income internet I was approved so they hooked up my internet on my dad's line everything was going good until 6/ 24 when they disconnected my dad's cable and my internet.  I started calling the first 4 or 5  they keep putting me on hold 20 to 30 each time I finally got ahold of a honest person that when I explained everything he said I needed new equipment I drove to miller rd flint waiting 45 min to get in and talk to someone I explained everything again to him he said he couldn't believe they hooked it up that way (  that's when I found out it was illegal to have 2 accountants on one line ) and agreed that was why my dad and my accounts where closed. I ask him what had to happen to get the service back he starred at his computer then talked to his manager and informed me he can't do anything to get my services back. I started calling to see what had to be done I kept getting told they showed my service ( internet) was offline that's why I'm calling I kept getting transferred put on hold to the point where I was going to blow that when I got to speak with was honest person that knew exactly what had happened a simple mistake  it took over 2 hours to get their mess fixed then all we had to do was cancel [Edited: "Personal Information"] account add cable to mine. They scheduled a service call just to make sure the issue was resolved. I took Dads equipment back showed to sales rep. He informed me that [Edited: "Personal Information"] account was not closed  so i had him close the account. I got the new equipment for my new plan he scanned it for some reason i had  to re verify my plan I asked why that was already done he assured me nothing was changed i signed he said hook it up call and have it activate the equipment and i would be hooked up. I hooked everything up called to have it activated they couldn't do anything some reason the sales rep. At the store tranferd my dad's information to my account an messed everything up again.  Started calling again kept getting the same runaround transferred hung up on one of the reps got irritated at me because my appointment got changed to the 28th then changed again. for most of the day finally got ahold of another honest rep. When I explained everything again she informed me my account was flaged the rep couldn't understand why this was happening.  After all that [Edited: "Language"] my appointment is 6/27 they know there's nothing I can do because the have the cable rights to my area